Health experts have urged people to look out for an unusual sign of a potentially dangerous condition on your hands. More specifically, small lumps around the knuckles could be a symptom of high cholesterol. Also known as hypercholesterolemia, having high cholesterol means you have too much cholesterol in your blood. While a certain amount of cholesterol is needed by the body, too much can be dangerous. This is because it can build up in your blood vessels, leading to blockages and even